Until last month, when “Private Practice” wrapped its six-year run, Rhimes had the notable distinction of seeing three series she created running on major networks in primetime. “Grey’s Anatomy” continues through its 10th season, while “Scandal” climbs in the ratings, with its third season premiere breaking past 10 million viewers.

Of course, if Rhimes had her way, she’d be even busier, having created two pilots and the cancelled “Off the Map” since her “Grey’s” breakout. Many of her biggest successes have tended to come from the series in which she has the most hands-on involvement, serving as writer-creator-producer. After the “CSI” team of Carol Mendelsohn and Ann Donahue, she will become only the third female writer to receive the ICG’s showmanship award.